Structural Organization In Animals

Intestinal cells

Basal cells

Chloragogen cells

Flame cells

Conservation of water.

Conservation of heat.

Regulation of temperature.

Regulation of amino acids.

Lens

Pigment

Nephridium

Hormone

Genital papillae are present on $17^{th}$ and $19^{th}$segment

Male genital pores are present on $18^{th}$ segment

Clitellum is present on segments 24, 25 and 26

Segments of earthworm are called somites

All segment except 1 - 4 and 10 - 14

1 - 2, 4 - 6, 15 to last segments

Meganephridia in pre-clitellar and micronephridia in post-clitellar segments

Micronephridia in all segments and meganephridia from clitellar region to end

Apposition

Superposition

Both A and B

No image is formed

It walks with a speed of 25 cm/min

It can remain without oxygen for 6-30 hrs

Life span is 3.5 -10 years

Setae can be easily dissolve in KOH

$4^{th}$ and $5^{th}$ targa of cockroach

$5^{th}$ and $6^{th}$ targa of cockroach

$5^{th}$ and $6^{th}$ sterns of cockroach

$4^{th}$ and $5^{th}$ sterns of cockroach

8${}^{th}$ - 10${}^{th}$ segment

$8^{th}$ segment

$27^{th}$ segment

8${}^{th}$ - 11${}^{th}$ segment